미용산업체 형태에 따른 접객시스템의 필요성과 중요성 인식의 차이 연구

최다혜,조지훈 한국인체미용예술학회 2017 한국인체미용예술학회지 Vol.18 No.2

With the growth of the beauty industry, beauty services that include all cosmetology activities as well as intangible services have become an important factor directly related to sales, not just the supply of products or services. They are also meaningful in terms of business strategy. Most hospitality-related studies focus on food and hotels, however, and studies on cosmetology-related customer services are rare. Therefore, this study attempted to investigate customer services in cosmetology. For this, a questionnaire comprised of a total of 45 questions (general characteristics of cosmetologists: 8; perception of the need for a hospitality system: 10; perception of the importance of hospitality system: 8’ hospitality system-related education: 8; etc.) was conducted. The collected data were analyzed using factor analysis (SPSS 21.0), a reliability test (factor analysis), paired t-test and independent t-test. Among a total of 230 questionnaires, 218 copies were collected and used for analysis. The results found the following: A hospitality system was a basic perception in both beauty salons and aesthetic clinics while it was a fairly new concept in makeup and nail salons. In addition, there has been little hospitality-related education across the cosmetology industry. Therefore, beauty salons and esthetic clinics must work hard to improve quality through continued hospitality education while makeup and nail salons should take greater awareness of its necessity and importance. There are limitations in generalizing the results of this study as Korea’s cosmetology industry trend and further studies on this matter based on the results of this study would make a contribution to the improvement of the hospitality systems.

Reference line-pair values of panoramic radiographs using an arch-form phantom stand to assess clinical image quality

최다혜,최보람,최진우,허경회,이원진,허민석,최순철,이삼선 대한영상치의학회 2013 Imaging Science in Dentistry Vol.43 No.1

Purpose: This study was performed to suggest reference line-pair values of panoramic images with clinically desirable qualities using an arch-form phantom stand. Materials and Methods: The line-pair test phantom was chosen. A real skull model was selected for setting the arch-form model of the phantom stand. The phantom stand had slits in four regions (incisor, premolar, molar, TMJ). Four raw images of the test phantom in each region and one raw image of the real skull were converted into 50 test phantom images and 50 skull phantom images with various line-pair values. 50 post-processed real skull phantom images were divided into 4 groups and were randomly submitted to 14 evaluators. Image quality was graded on a 4 point scale (1. good, 2. normal, 3. poor but interpretable, and 4. not interpretable). The reference line pair was determined as the first line-pair value scored less than 2 points. Result: The mean scores tended to decrease as the line-pair values increased. The reference line-pair values were 3.19 LP/mm in the incisor, 2.32 LP/mm in the premolar and TMJ, and 1.88 LP/mm in the molar region. Conclusion: Image quality evaluation methods and criteria should be able to assess various regions considering the characteristics of panoramic systems. This study suggested overall and regional reference line-pair values and established a set of standard values for them.

생성 AI와 AI 창작물 저작권에 대한 사용자의 인식 연구: 사용자 그룹의 차이를 중심으로

최다혜,김정용,한다은,오창훈 국제문화기술진흥원 2023 The Journal of the Convergence on Culture Technolo Vol.9 No.1

Generative AI systems are expected to be more widely utilized. However, relatively little attention has been paid to understanding how users perceive and accept generative AI results. To identify strategies for increasing the future use of generative AI and prepare for potential issues, we organized design workshop for the general user group and the designer group. They created artwork utilizing Novel AI and semi-structured interview was followed to evaluate their attitudes toward generative AI and its copyright. Results indicate that the general public views generative AI positively, while the design-related group views it quite negatively. The participants expressed concerns as to the misuse the system, specifically related to copyright issues. People who are likely to utilize generative AI outcomes have insisted more strongly that copyrights should be their own. Those working in the design field highly evaluated the possibility of using generative AI in their work. Copyright perceptions were not significantly influenced by users' satisfaction or their level of involvement in the creation process. We discuss design implications for interfaces using generative AI based on the findings. 생성 AI의 시스템의 발전과 다양화로 인해 해당 기술의 결과물의 활용도가 높아질 것으로 예상된다. 이에 생성 AI를 활용하여 창작한 결과물을 어떻게 받아들여야 할지에 대한 사용자의 인식과 태도에 대한 이해가 중요하다. 본 연구는 생성 AI의 추후 활용도를 높이고 발생 가능한 논란에 대비하기 위해 사용자 조사를 진행하였다. 일반 사용자 집단과 디자인 관계자 집단이 참여하였으며, 사용자 관점에서 생성 AI에 대한 태도와 생성 AI를 활용한 창작물의 저작권 인식을 주제로 디자인 워크샵을 진행하였다. 정성 분석 결과, 일반인 집단은 전반적으로 생성 AI 사용에 대해 긍정적인 반면, 디자인 관계자 집단은 부정적인 인식을 갖는 것으로 나타났다. 사용자들은 생성 AI의 결과물의 표절과 도용, 저작권 보호 법제화의 현실 가능성에 대한 우려를 표출했다. 한편, 생성 AI 결과물을 활용할 가능성이 높은 그룹일수록 창작자의 저작권 소유를 주장하였으며, 직장인 그룹이 생성 AI의 실무 활용 가능성을 더 높게 평가하였다. 생성 AI 결과물의 개별 만족도와 체감 관여도는 저작권에 직결되는 영향을 주지 않았다.

테라헤르츠 이미징 기술 개발 동향

최다혜,신준환,이의수,문기원,이일민,박동우,김현수,김무건,최경선,박경현,Choi, D.H.,Shin, J.H.,Lee, E.S.,Moon, K.W.,Lee, I.M.,Park, D.W.,Kim, H.S.,Kim, M.G.,Choi, K.S.,Park, K.H. 한국전자통신연구원 2019 전자통신동향분석 Vol.34 No.5

Modern imaging technologies utilizing electromagnetic waves are indispensable in our daily lives. Applications, such as television and smartphone screens, radar imaging for weather forecast, and medical imaging, can be attributed to technology developments in various electromagnetic regions. Terahertz (THz) waves, electromagnetic (EM) waves located between far infrared and microwave regions, had left unexplored EM waves. Recent advances in technology have led to various two-dimensional and three-dimensional THz imaging techniques. In this article, we explain THz imaging techniques as well as the experimental results from our laboratory. Additionally, we introduce commercial THz cameras developed worldwide. Finally, we present the applications of THz imaging techniques.

결합조직형성 법랑모세포종의 방사선학적 소견 : 증례보고 3례

최다혜,허경회,문제운,이원진,허민석,이삼선,최순철,박관수 대한구강악안면방사선학회 2006 Imaging Science in Dentistry Vol.37 No.1

Desmoplastic ameloblastoma is a rare histologic variant of ameloblastoma. It shows important differences in anatomic distribution, histologic appearance, and radiographic findings compared with the general type of ameloblastoma. It is histologically characterized by an abundance of densely collagenous stroma and radiographically a mixed radiolucent-radiopaque lesion. We present three cases of desmoplastic ameloblastoma. All the patients complained on buccal swelling with or without pain and the sites of occurrence were the anterior and the premolar region. Plain radiographs showed mixed radiopaque-radiolucent lesion with ill-defined or diffuse sclerotic margin and no external root resorption. Additionally, CT scans revealed buccal expansion and relatively well-defined margin of the lesions. The clinical and radiographic features of the presented cases were compared with those of the desmoplastic ameloblastoma in the previous literatures. (Korean J Oral Maxillofac Radiol 2006; 36 : 63-8)

외로움과 스마트폰 중독의 관계에서 정서조절곤란의 매개효과

최다혜,이혜진 한국인지행동치료학회 2017 인지행동치료 Vol.17 No.1

본 연구는 외로움이 스마트폰 중독에 미치는 영향을 알아보고, 정서조절의 어려움이 외로움과 스마트폰 중독의 관계를 매개하는지 알아보고자 하였다. 이를 위해 전국의 남녀 467명을 대상으로 한국판 UCLA 외로움 척도, 스마트폰 중독 척도, 한국판 정서조절곤란 척도를 실시하였다. 상관 분석 결과, 외로움은 스마트폰 중독 및 정서조절곤란의 6가지 요인들과 정적 상관이 있었고, 각 정서조절곤란 요인과 스마트폰 중독도 정적 상관이 있었다. 정서조절곤란 요인들이 외로움과 스마트폰 중독의 관계를 매개하는지 검증한 결과, 성별과 연령을 통제한 후에도 외로움은 스마트폰 중독을 유의하게 예측하였고, 정서조절곤란 요인들은 외로움과 스마트폰 중독의 관계를 완전매개하였다. 정서조절곤란 요인들 중에서는 ‘충동통제곤란’과 ‘정서에 대한 주의와 자각 부족’이 유의한 매개효과를 보였다. 이 같은 결과는 외로움이 정서조절곤란을 통해 스마트폰 중독에 영향을 미친다는 것을 의미하며, 특히 외로움과 같은 부정적 정서의 자각이나 통제의 어려움이 스마트폰 중독으로 이끄는 요인임을 시사한다. 이는 스마트폰 중독 개입 시 외로움만을 다루는 것보다 정서조절 능력을 향상시키는 것이 효과적일 수 있다는 임상적 함의를 가진다. 위의 결과를 바탕으로 본 연구의 의의와 제한점에 대해 논의하였다. The purpose of this study was to examine the mediating effects of emotion regulation difficulties on the relationship between loneliness and smartphone addiction. Participants were 467 men and women who completed the following questionnaires: Korean version of the Revised UCLA Loneliness Scale, Smartphone Addiction Scale, and Korean version of the Difficulties in Emotion Regulation Scale. Correlational analyses showed that loneliness was positively related to smartphone addiction as well as six factors of the emotion regulation difficulties, and each emotion regulation difficulties factor was positively associated with smartphone addiction. Multiple regression analyses revealed that emotion regulation difficulties completely mediated the relationship between loneliness and smartphone addiction, even after controlling for sex and age. Among factors of emotion regulation difficulties, ‘impulse control difficulties’ and ‘lack of attention to and awareness of emotions’ had significant mediating effects. These results suggest that loneliness affects smartphone addiction through emotion regulation difficulties, specifically by the lack of awareness or difficulties in controlling negative emotion such as loneliness. This finding has clinical implications such that intervention for smartphone addiction should focus not only on loneliness but also on emotion regulation difficulties. Further implications and limitations of these results are discussed.

다양한 열차 종별 운행 시 경합에 의한 LOS 연구

최다혜,이호준,김용성,황선찬,김형준 한국철도학회 2020 한국철도학회 학술발표대회논문집 Vol.2020 No.11

Characterization of Biodegradable Hyaluronic acid Microneedle Arrays (MNs) as their Aspect Ratios (ARs)

최다혜,민현규,이승준 한국공업화학회 2019 한국공업화학회 연구논문 초록집 Vol.2019 No.0

Microneedles arrays (MNs) have used for a variety of applications depending on their height. The aim of this study was to extensively investigate to understand the characteristics of MNs on the different aspect ratios (ARs). Thus, biodegradable MNs were constructed to height of less than 750um with an aspect ratio of 1.0, 2.0, and 3.0 both needle width and top, respectively. And then, their characteristics for ARs were examined by the morphology, mechanical strength, and skin permeability. The shape of the MNs manufactured was verified using SEM (Scanning Electron Microscope) and the skin permeability was measured using commercially available porcine skins. As a result, different mechanical properties of the aspect ratio were identified. Therefore, it may be desirable to design the MNS differently depending on the purpose of applying MNs.

치위생(학)과 대학생의 정신건강과 학업적 자기효능감이 시험불안에 미치는 영향

최다혜,김수경 한국치위생학회 2020 한국치위생학회지 Vol.20 No.5

Objectives: The purpose of this study was to analyze the factors that affect the test anxiety among dental hygiene students, including mental health and academic self-efficacy. Methods: A self-administered questionnaire survey was conducted among dental hygiene students in a metropolitan area from July 21 to July 31, 2020, and finally, 196 copies were statistically analyzed using SPSS 21.0. Results: The mean values of mental health, academic self-efficacy, and test anxiety among the dental hygiene students were 1.47±0.41, 2.99±0.46, and 2.76±0.74, respectively. Mental health was negatively correlated with self-efficacy (r=-0.346, p<0.01) and positively correlated with test anxiety (r=0.405, p<0.01), while academic self-efficacy was negatively correlated with test anxiety (r=-0.424, p<0.001). The factors that affect test anxiety were somatization (p<0.05), anxiety (p<0.05), paranoia (p<0.05), task preference (p<0.05), and confidence (p<0.001), which are the detailed items of academic self-efficacy. Conclusions: It is necessary to develop and apply customized health programs suitable for individual students to improve their mental health, as well as develop teaching and learning methods that can improve academic self-efficacy, as mental health and academic self-efficacy are influential factors in test anxiety among dental hygiene students.

Antioxidant and lipid-reducing Effects of Rosa rugosa Root Extract in 3T3-L1 cell

최다혜,한준희,홍민,이선엽,이수웅,권태형 한국식품과학회 2022 Food Science and Biotechnology Vol.31 No.1

Rosa rugosa root is traditionally known to be effective in the treatment of diabetes in Korea. R. rugosa root-specific compounds also show antioxidant effects, and could reduce lipid and fat accumulation, however, the underlying mechanism has not been clarified. In present study, the antioxidant and lipid-reducing effects of a 50% ethanol extract of R. rugosa (REE) were investigated differentiated mouse preadipocytes (3T3-L1 cells). REE showed strong radical scavenging activities and inhibitory effect of total lipid accumulation and triglyceride levels in differentiated 3T3-L1 cells. In addition, REE treatment reduced the mRNA and protein levels of adipogenesis and lipogenesis markers. This REE-promoted lipid reduction was caused by downregulation of peroxisome proliferator activated receptor gamma (PPARγ), CCAAT/enhancer binding protein alpha (C/EBPα), and sterol regulatory element binding protein1 (SREBP1c) and down regulation of ERK expression. Overall, these results demonstrate the potential of REE for development of a drug in the medical treatment of lipid-associated disorders.